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Proceedings Paper

Temperature characteristics of vertical-cavity surface-emitting lasers
Author(s): Lin Li; Jing-chang Zhong; Ying-jie Zhao
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Paper Abstract

The temperature characteristics of Oxide-confined VCSEL are described, these records of high operating temperature are caused by high characteristic temperature. The VCSEL device temperature is increased by heating from ambient temperature 20°C up to 100°C. The effect of temperature elevation increased from T1 to T2 on the threshold current Ith(T) is often described by a characteristic temperature. We obtain a function T0(T) which decreases from 220K at 20°C temperature to 200K at 100°C. The essential improvements for the oxide-confined VCSEL in this work are focused on the following two points. First, we decrease the series resistance of the VCSEL. Secondly, the oxide-confined technique reduces defects and optical absorption in the active region. The oxide-confined is worthy to be used just because of its better confinements for both beam and current, easier processing, and lower cost. The fact that the device’s threshold current in pulse operation slightly depends on ambient temperature means that the VCSEL’s characteristic temperature (T0) is higher.

Paper Details

Date Published: 31 January 2005
PDF: 6 pages
Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); doi: 10.1117/12.577260
Show Author Affiliations
Lin Li, Changchun Univ. of Science and Technology (China)
Jing-chang Zhong, Changchun Univ. of Science and Technology (China)
Ying-jie Zhao, Changchun Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 5624:
Semiconductor and Organic Optoelectronic Materials and Devices
Chung-En Zah; Yi Luo; Shinji Tsuji, Editor(s)

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